Quality of vision and outcomes after bilateral implantation of pseudo-non diffracting beam IOL

Abstract

PurposeTo analyze the objective and subjective visual performances of a new hybrid refractive/aspheric extended depth of focus (EDOF) intraocular lens (IOL).MethodsIn this monocentric prospective study patients with bilateral cataracts underwent cataract surgery and were implanted with a Lucidis IOL (SAV-IOL SA, Neuchâtel, Switzerland) in both eyes, 1 week apart from each other. At 3 months from implantation postoperative evaluations included monocular and binocular uncorrected and distance-corrected distant (4 m), intermediate (80 cm, 67 cm) and near (40 cm) visual acuities (UDVA/DCVA, UI80-67VA/DCI80-67VA, UNVA/DCNVA), binocular defocus curves, halometry, contrast sensitivity and objective quality-of-vision measurements. Also, patients were also asked to complete the national eye institute refractive error quality of life (NEI-RQL-42) questionnaire.ResultsTwenty-five patients (50 eyes) were included. The mean postoperative binocular UDVA, UI80VA, UI67VA and UNVA were-0.02 ± 0.13, 0.05 ± 0.09, 0.05 ± 0.08 and 0.03 ± 0.1 LogMar, and did not significantly differ from their corrected counterparts. On binocular defocus curves a VA ≥0.05LogMar was found between +0.50 and − 2.50 D of vergence, whereas the mean distance from the central stimulus on halometry was 1.23 ± 0.01. Mean ocular and corneal radical mean square at 4 mm were 0.31 ± 0.28 and 0.19 ± 0.07, respectively; whereas the mean Strehl ratio was 0.2 ± 0.09.ConclusionLucidis IOLs demonstrated excellent visual performances, especially at close distances while maintain good quality of vision, contrast sensitivity, and overall patient-satisfaction.

Information Transmission through Biotic–Abiotic Interfaces to Restore or Enhance Human Function

“…For metal components, titanium alloys are a stable option for long-term implants, such as the silicone-coated titanium WIMAGINE brain implant used to restore walking ability. , The coating of metallic implants can further boost biocompatibility, such as the coating of titanium pacemakers with silver ions to reduce infection risk . Simple prosthetics such as the intraocular lens (IOL) implant are made from silicone or other polymers, and they can cure cataracts and provide spectacle independence for near or far-sightedness by accurately focusing light on the retina. − The challenges of infection, biocompatibility, and functional lifetime mean that, when possible, abiotic modules that can interface without surgery should be used, such as goggles that interface with optogenetically engineered RGCs (Figure C) …”

Clinical and Diagnostic Efficiency of the Study of the Quality of Life According to the Questionnaires PHEC-22 and Catquest-9SF after Bilateral Cataract Phacoemulsification and Monofocal IOL Implantation

“…Подводя итог, следует еще раз подчеркнуть актуальность исследования КЖ пациента в катарактальной хирургии на современном этапе развития офтальмологии [23][24][25][26][27]. Практическое внедрение методики исследования КЖ пациента ФЭК-22 обеспечит, с нашей точки зрения, повышение уровня клинико-диагностического исследования в рамках хирургии катаракты при решении ряда актуальных задач: сравнительной оценки ИОЛ, исследования эффективности методов послеоперационной реабилитации пациентов, выбора оптимальной формулы расчета ИОЛ и некоторых других.…”